- CALUM LTD- 07124226 - Incorporated on 13 January 2010 
- J CALUM LTDDisolved- 14094680 - Dissolved on 4 April 2023 
- CALUMG12 LTDDisolved- 15288966 - Dissolved on 15 April 2025 
- CALUMI LTDActive - Proposal to Strike off- 12173511 - Incorporated on 26 August 2019 
- CHECKPOINT AUTOMOTIVE LTD- SC795055 - Incorporated on 12 January 2024 
- CALUMBA LTDDisolved- 15732742 - Dissolved on 25 March 2025 
- CH BY CALUM LTDActive - Proposal to Strike off- 11596909 - Incorporated on 1 October 2018 
- CALUM'S CABIN- CS000292 - Incorporated on 10 April 2007 
- CALUM ARY LTDActive - Proposal to Strike off- SC648906 - Incorporated on 4 December 2019 
- HAY FARMING CONTRACTORS LTDActive - Proposal to Strike off- SC612524 - Incorporated on 2 November 2018 
- MONTGOMERY & MONTGOMERY PARTNERSHIP- SL003293 - Incorporated on 9 July 1998 
- CALUM HILL LTDActive - Proposal to Strike off- 11686842 - Incorporated on 20 November 2018 
- CALUM FREW LTDDisolved- SC724849 - Dissolved on 1 August 2023 
- CALUM LYON LTD- 07207679 - Incorporated on 30 March 2010 
- HIGHWAYS TRAFFIC LTDActive - Proposal to Strike off- 11088317 - Incorporated on 29 November 2017 
- CALUMNIA LTD.Active - Proposal to Strike off- 08239740 - Incorporated on 4 October 2012 
- CALUM KERR LTDActive - Proposal to Strike off- SC549441 - Incorporated on 4 November 2016 
- CALUM GRANT LTD.Dissolved- SC248287 - Dissolved on 28 January 2020 
- CALUM J YUILL LTD.Disolved- SC376688 - Dissolved on 24 June 2025 
- CALUM’S COINS LTDActive - Proposal to Strike off- SC624828 - Incorporated on 19 March 2019